Depending on the processed material from each drill must be properly sharpened. To verify the correct angle will help a specially prepared square plate of copper or aluminium with a thickness of 1 mm.
To become operational protractor enough to cut it cut, as shown in the picture: a large cutout at an angle of 120 degrees, the other half is 60 degrees and the surviving corner of a square is 90.
Recommend to read
MOTOMACHI: IDEAS AND DESIGNS
If the village is unthinkable without the tens and hundreds of motorcycles, mopeds and bicycles, in the Northern part of the country, where winter lasts nine months of the year, the role...
PLANER-JIG
Strictly aged sharpening angle is an important element of any carpenter's tool. However, to achieve this on the bar manually is not so easy, especially for pieces of iron of a plane. A...
